Holmes' former sobriety sponsor asks for help with an illegal endeavor in order to save his brother. Holmes and Watson investigate the poisoning of a biology professor who was working on a secret project.
Episode rating
Cast of episode
91
9
- Sherlock Holmes
- Dr. Joan Watson
- Detective Marcus Bell
- Captain Thomas Gregson
- Alfredo Llamosa
- Dudley Becket
- Hunter Becket
- Richie
- Hugo Irving
- Wade
- Dan
- Allison
- Lacey
- Valerie Field
- Maya
- Karen
- Elijah Robinson